PBEFACE. viii 



John Edward Gray, F.R.S., Keeper of the Zoological Department in the British 

 Museum, has furnished a most valuable List of the Mammalia of the Eastern Islands. 



Sir John Richardson, M.D., F.R.S., &c, has, by his description, imparted a peculiar 

 interest to the new species of Fish. 



Professor Owen, E.R.S., &c, has contributed an elaborate memoir on the Spirula. 



Lovell Reeve, F.L.S., &c, has afforded his valuable aid in the description and 

 identification of the Mollusca. 



Adam White, F.L.S., &c, of the British Museum, has been my able collaborateur 

 in the determination of the Crustacea. 



And I avail myself of the present opportunity to offer my best thanks to the above- 

 mentioned gentlemen for this their very valuable assistance. With respect to the execution 

 of the Plates, it is only necessary to observe that they are the production of Messrs. 

 Sowerby, Wing, and Hawkins, to assure the public of their accuracy and excellence. 



ARTHUR ADAMS. 



